.yinliai-float-button {
  position: fixed;
  width: 48px;
  height: 48px;
  background: white;
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  z-index: 2147483646;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.yinliai-float-button:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.yinliai-float-button img {
  width: 32px;
  height: 32px;
  user-select: none;
}

.yinliai-float-button.logged-in {
  background: #2563EB;
}

.yinliai-float-button img.avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
} 